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==Classification==
===Classification and Grading===
Physicians grade chondrosarcoma using several criteria, but particularly on how abnormal the cancerous cells appear under the microscope, and the growth rate of the tumors themselves, both of which are directly linked to the propensity of the cancer to invade locally, and to spread widely to distant organs and sites in the body (called [[metastasis]]).
Grade 1 chondrosarcoma grows relatively slowly, has cells whose [[histological]] appearance is quite similar to cells of normal cartilage, and have much less aggressive invasive and metastatic properties. Grades 2 and 3 are increasingly faster-growing cancers, with more varied and abnormal-looking cells, and are much more likely to infiltrate surrounding tissues, lymph nodes, and organs. Some, but not all, authorities and medical facilities assign a "Grade 4" to the most [[anaplastic]], undifferentiated cartilage-derived tumors.
The most common sites for chondrosarcoma to grow are the pelvis and shoulder, along with the superior [[metaphysis|metaphysial]] and [[diaphysis|diaphysial]] regions of the arms and legs.<ref name="urlChondrosarcoma : Cancerbackup">{{cite web |url=http://www.cancerbacup.org.uk/Cancertype/Bone/Typesofbonecancer/Chondrosarcoma#3340 |title=Chondrosarcoma : Cancerbackup |format= |work= |accessdate=2009-02-14}}</ref> However, chondrosarcoma may occur in any bone, and are sometimes found in the skull, particularly at its base.
[[ICD-O]] codes provide a more precise classification of chondrosarcoma. These "subtypes" are derived from, and reflect, both (a) the topographical location of the tumor, (b) the histological characteristics of the cancerous cartilage cells, and (c) the makeup of the surrounding matrix material associated with the tumor:
* 9220 = Chondrosarcoma NOS ("Not Otherwise Specified")
* 9221 = [[Juxtacortical chondrosarcoma]]
* 9231 = [[Myxoid chondrosarcoma]]
* 9240 = [[Mesenchymal chondrosarcoma]]
* 9242 = [[Clear cell chondrosarcoma]]
* 9243 = [[Dedifferentiated chondrosarcoma]]


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==References==
==References==
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[[Category:Oncology]]
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[[Category:Orthopedics]]
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[[Category:Types of cancer]]
[[Category:Types of cancer]]

Revision as of 15:21, 13 March 2013

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Classification

Classification and Grading

Physicians grade chondrosarcoma using several criteria, but particularly on how abnormal the cancerous cells appear under the microscope, and the growth rate of the tumors themselves, both of which are directly linked to the propensity of the cancer to invade locally, and to spread widely to distant organs and sites in the body (called metastasis).

Grade 1 chondrosarcoma grows relatively slowly, has cells whose histological appearance is quite similar to cells of normal cartilage, and have much less aggressive invasive and metastatic properties. Grades 2 and 3 are increasingly faster-growing cancers, with more varied and abnormal-looking cells, and are much more likely to infiltrate surrounding tissues, lymph nodes, and organs. Some, but not all, authorities and medical facilities assign a "Grade 4" to the most anaplastic, undifferentiated cartilage-derived tumors.

The most common sites for chondrosarcoma to grow are the pelvis and shoulder, along with the superior metaphysial and diaphysial regions of the arms and legs.[1] However, chondrosarcoma may occur in any bone, and are sometimes found in the skull, particularly at its base.

ICD-O codes provide a more precise classification of chondrosarcoma. These "subtypes" are derived from, and reflect, both (a) the topographical location of the tumor, (b) the histological characteristics of the cancerous cartilage cells, and (c) the makeup of the surrounding matrix material associated with the tumor:


References

  1. "Chondrosarcoma : Cancerbackup". Retrieved 2009-02-14.


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